Re: [PATCH v3 3/4] arm64: dts: qcom: Add PURWA-IOT-SOM platform

[Vikash Garodia]

On 1/13/2026 4:59 PM, Konrad Dybcio wrote:
> On 1/13/26 11:47 AM, Dmitry Baryshkov wrote:
> > On Tue, Jan 13, 2026 at 06:28:15PM +0800, YijieYang wrote:
> > > From: Yijie Yang <yijie.yang@xxxxxxxxxxxxxxxx>
> > >
> > > The PURWA-IOT-SOM is a compact computing module that integrates a System
> > > on Chip (SoC) — specifically the x1p42100 — along with essential
> > > components optimized for IoT applications. It is designed to be mounted on
> > > carrier boards, enabling the development of complete embedded systems.
> > >
> > > Make the following peripherals on the SOM enabled:
> > > - Regulators on the SOM
> > > - Reserved memory regions
> > > - PCIe3, PCIe4, PCIe5, PCIe6a
> > > - USB0 through USB6 and their PHYs
> > > - ADSP, CDSP
> > > - Graphic
> > >
> > > Signed-off-by: Yijie Yang <yijie.yang@xxxxxxxxxxxxxxxx>
> > > ---
> > >   .../qcom/{hamoa-iot-som.dtsi => purwa-iot-som.dtsi}   | 11 +++++------
> > >   1 file changed, 5 insertions(+), 6 deletions(-)
> > >   copy arch/arm64/boot/dts/qcom/{hamoa-iot-som.dtsi => purwa-iot-som.dtsi} (99%)
> > >
> > > diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi b/arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
> > > similarity index 99%
> > > copy from arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
> > > copy to arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
> > > index b8e3e04a6fbd..fb90beb1096f 100644
> > > --- a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
> > > +++ b/arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
> > > @@ -3,11 +3,14 @@
> > >    * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
> > >    */
> > >   
> > > -#include "hamoa.dtsi"
> > > +#include "purwa.dtsi"
> > >   #include "hamoa-pmics.dtsi"
> > >   #include <dt-bindings/gpio/gpio.h>
> > >   #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> > >   
> > > +/delete-node/ &pmc8380_6;
> > > +/delete-node/ &pmc8380_6_thermal;
> > > +
> > >   / {
> > >   	reserved-memory {
> > >   		linux,cma {
> > > @@ -378,16 +381,12 @@ vreg_l3j_0p8: ldo3 {
> > >   	};
> > >   };
> > >   
> > > -&iris {
> > > -	status = "okay";
> > > -};
> >
> > Why?
>
> Purwa has a slightly different Iris hw version (8.1.2 on Hamoa, 8.1.11 on Purwa)
> which I would assume is slighly weaker, plus there's probably a freqtbl change
>
> Let's take this as-is and enable it later
>
> +Vikash, Dikshita this seems like a really low-hanging fruit, could you take
> a look at Purwa support in Iris?

video should leverage most from hamoa, infact Wangao have validated iris 
on purwa very recently.

+Wangao to list the changes he made to bring it up

> Konrad